Home / 124,868.52-172,322.69-68,279.90

Finding the Fourth Proportional to 124,868.52, 172,322.69 and 68,279.90

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Solution

The fourth proportional to 124,868.52, 172,322.69 and 68,279.90 is: 94,228.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,868.52 : 172,322.69 = 68,279.90 : x
  2. Step 2: Convert to fraction form
    124,868.52/172,322.69 = 68,279.90/x
  3. Step 3: Cross multiply
    124,868.52x = 172,322.69 × 68,279.90
  4. Step 4: Simplify right side
    124,868.52x = 11,766,174,837.92
  5. Step 5: Solve for x
    x = 11,766,174,837.92/124,868.52
  6. Step 6: Final answer
    x = 94,228.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.